Well even though that device was not around a month ago, I did buy a wimax enabled laptop on Sprint (The Dell Inspirion 11z (really a M101z updated). my review here.
It replaced my tired old HP Tablet PC which main display stopped working as well as the 3g/4g broadband usb modem. The signal from the laptop is way stronger. and I ended up getting for about $49.00. Considering that all I needed was to upgrade the memory and bam I was good to go.
As for the vga output, well my Dell laptop has one too and I actually needed that to connect to the work pcs for dual display. But it also has a hdmi port for more recent tvs/monitors. Lenovo makes very good laptops, (android tablets is another story).
Anyway going back to this device, if one is in a wimax area now and is looking for a cheap laptop, they can get their $150 discount applied to its purchase then they have a very good machine. It is also LTE capable since one can just buy the Gobi card and stick it in once LTE comes on board. That's what I plan on doing to my Dell.
TS